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# PCI configuration
bool "arch support msi"
default n
config PCI_MSI
bool "Message Signaled Interrupts (MSI and MSI-X)"
depends on PCI
This allows device drivers to enable MSI (Message Signaled
Interrupts). Message Signaled Interrupts enable a device to
generate an interrupt using an inbound Memory Write on its
PCI bus instead of asserting a device IRQ pin.
Use of PCI MSI interrupts can be disabled at kernel boot time
by using the 'pci=nomsi' option. This disables MSI for the
entire system.
If you don't know what to do here, say Y.
config PCI_DEBUG
bool "PCI Debugging"
depends on PCI && DEBUG_KERNEL
Say Y here if you want the PCI core to produce a bunch of debug
messages to the system log. Select this if you are having a
problem with PCI support and want to see more of what is going on.
When in doubt, say N.
config PCI_STUB
tristate "PCI Stub driver"
depends on PCI
Say Y or M here if you want be able to reserve a PCI device
when it is going to be assigned to a guest operating system.
When in doubt, say N.
config HT_IRQ
bool "Interrupts on hypertransport devices"
default y
depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
This allows native hypertransport devices to use interrupts.
If unsure say Y.
config PCI_IOV
bool "PCI IOV support"
depends on PCI
I/O Virtualization is a PCI feature supported by some devices
which allows them to create virtual devices which share their
physical resources.
If unsure, say N.
depends on PCI
depends on ACPI
depends on HOTPLUG
default y